This poster describes our recently developed real-time projector-camera system for interaction with Chinese Ink-and-Wash Cartoons. We implement a real-time interactive water simulation under the acceleration of GPU, together with a sensing subsystem using computer vision techniques. Combined with Chinese stylized fish rendered in process, the system provides real-time interactions with traditional Chinese paintings. By stirring up the still water, fish and other essential elements of Chinese paintings, we hope to present new interaction techniques and more lively Chinese painting sceneries compared to those in traditional static settings.